<template>
  <view class="viewport">
    <!-- 推荐封面图 -->
    <view class="cover">
      <image :src="bannerPicture"></image>
    </view>
    <!-- 推荐选项 -->
    <view class="tabs">
      <text
        class="text"
        :class="{ active: index === activeIndex }"
        v-for="(item, index) in commentList"
        :key="index"
        @click="activeIndex = index"
      >
        {{ item.subType.title }}
      </text>
    </view>
    <!-- 推荐列表 -->
    <scroll-view
      v-for="(item, index) in commentList"
      :key="index"
      v-show="index === activeIndex"
      scroll-y
      class="scroll-view"
      @scrolltolower="getMoreList"
    >
      <view class="goods">
        <navigator
          hover-class="none"
          class="navigator"
          v-for="goods in item.goodsItem.items"
          :key="goods.id"
          :url="`/pages/goods/goods?id=`"
        >
          <image class="thumb" :src="goods.picture"></image>
          <view class="name ellipsis">{{ goods.name }}</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{ goods.price }}</text>
          </view>
        </navigator>
      </view>
      <view class="loading-text">
        {{ item.finished ? "没有更多了" : "加载中" }}
      </view>
    </scroll-view>
  </view>
</template>
<script>
import { getRecommendApi } from "@/api/hot"
export default {
  data() {
    return {
      commentList: [],
      bannerPicture: "",
      activeIndex: 0,
    }
  },
  onLoad({ type }) {
    const urlMap = {
      1: { title: "特惠推荐", url: "/home/preference/mutli" },
      2: { title: "爆款推荐", url: "/home/inVogue/mutli" },
      3: { title: "一站买全", url: "/home/oneStop/mutli" },
      4: { title: "新鲜好物", url: "/home/new/mutli" },
    }
    this.currentInfo = urlMap[type]
    uni.setNavigationBarTitle({ title: this.currentInfo.title })
    this.getRecommend()
  },
  methods: {
    async getRecommend() {
      const { data } = await getRecommendApi(this.currentInfo.url)
      // console.log(data)
      this.bannerPicture = data.result.bannerPicture
      this.commentList = data.result.subTypes.map((item) => {
        return {
          subType: item,
          goodsItem: data.result.goodsItems[item.id],
        }
      })
      console.log(this.commentList)
    },
    async getMoreList() {
      const currentShow = this.commentList[this.activeIndex]
      const { page, pages } = currentShow.goodsItem
      currentShow.goodsItem.page++
      if (page >= pages) {
        this.$set(currentShow, "finished", true)
        return uni.showToast({
          title: "没有更多数据了",
          icon: "none",
        })
      }
      const data = {
        page: currentShow.goodsItem.page,
        pageSize: 10,
        subTypeId: currentShow.subType.id,
      }
      const { data: res } = await getRecommendApi(this.currentInfo.url, data)
      currentShow.goodsItem.items.push(
        ...res.result.goodsItems[data.subTypeId].items
      )
    },
  },
}
</script>
<style lang="scss">
page {
  height: 100%;
  background-color: #f4f4f4;
}
.viewport {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 180rpx 0 0;
  position: relative;
}
.cover {
  width: 750rpx;
  height: 225rpx;
  border-radius: 0 0 40rpx 40rpx;
  overflow: hidden;
  position: absolute;
  left: 0;
  top: 0;
  image {
    width: 100%;
    height: 100%;
  }
}
.scroll-view {
  flex: 1;
  overflow: hidden;
}
.tabs {
  display: flex;
  justify-content: space-evenly;
  height: 100rpx;
  line-height: 90rpx;
  margin: 0 20rpx;
  font-size: 28rpx;
  border-radius: 10rpx;
  box-shadow: 0 4rpx 5rpx rgba(200, 200, 200, 0.3);
  color: #333;
  background-color: #fff;
  position: relative;
  z-index: 9;
  .text {
    margin: 0 20rpx;
    position: relative;
  }
  .active {
    &::after {
      content: "";
      width: 40rpx;
      height: 4rpx;
      transform: translate(-50%);
      background-color: #27ba9b;
      position: absolute;
      left: 50%;
      bottom: 24rpx;
    }
  }
}
.goods {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 20rpx 20rpx;
  .navigator {
    width: 300rpx;
    padding: 20rpx;
    margin-top: 20rpx;
    border-radius: 10rpx;
    background-color: #fff;
  }
  .thumb {
    width: 300rpx;
    height: 305rpx;
  }
  .name {
    height: 88rpx;
    font-size: 26rpx;
  }
  .price {
    line-height: 1;
    color: #cf4444;
    font-size: 30rpx;
  }
  .symbol {
    font-size: 70%;
  }
  .decimal {
    font-size: 70%;
  }
}

.loading-text {
  text-align: center;
  font-size: 28rpx;
  color: #666;
  padding: 20rpx 0 50rpx;
}
</style>
